Campbell Biology: Concepts.. (Custom Package)
8th Edition
ISBN: 9781323042649
Author: Central Texas
Publisher: PEARSON
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Chapter 37, Problem 4TYK
Summary Introduction
Introduction: An ecosystem is a collective interaction of the biotic and abiotic components. The biotic components of an ecosystem are the living organisms, while the abiotic components of an ecosystem are the non-living entities such as air, water, and soil. Nitrogen is an abiotic component that is essential for the survival of plants.
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Which essential chemical must be “fixed” by soil-dwelling bacteria before it can enter the food chain?
a. Carbon
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c. Phosphorous
d. Both a. and b.
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Read the article on the next page, then answer these questions:
a. Explain how goats contributed to the erosion photo at the beginning of the article:
b. Under the subtitle “Disturbing Trend…”, what are the reasons that our soil is damaged?
c. What caused the “Dust Bowl”, and what can be done to avoid this type of disaster?
d. Write something that you learned from the article, or a question that you have.
Do we treat our soil like dirt? The effects of soil erosion
By Dennis Dimick, National Geographic, adapted by Newsela staff
The question above was the headline of a National Geographic article about soils in 1984. It remains as relevant today as it was back then, suggesting how little attention we continue to pay to how we grow our food.
We lavish attention on our food, we want to know where it came from, who grew it, and whether it is "conventional" or "organic." But we give hardly a passing thought to the…
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Chapter 37 Solutions
Campbell Biology: Concepts.. (Custom Package)
Ch. 37 - Fill in the blanks in the table below summarizing...Ch. 37 - Fill in the blanks in the table below summarizing...Ch. 37 - Which of the following groups is (are) absolutely...Ch. 37 - Prob. 4TYKCh. 37 - Prob. 5TYKCh. 37 - Prob. 6TYKCh. 37 - The open ocean and tropical rain forests...Ch. 37 - Prob. 8TYKCh. 37 - Prob. 9TYKCh. 37 - Prob. 10TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Plants obtain ______ by taking it up from the air. a. nitrogen c. phosphorus b. carbon d. waterarrow_forwardDecomposing organic matter in soil is called______ . a. clay d. silt b. humus e. sand c. topsoil f. leachingarrow_forwardThe process whereby nitrogen is brought into organic molecules is called ________. a. nitrification b. denitrification c. nitrogen fixation d. nitrogen cyclingarrow_forward
- Based on temperature requirements which of the following is not correct?* a. Coconut and mango are tropical crops b. Asian rice and wheat are cool season crops c. Citrus species are sub-tropical crops d. Cruciferous vegetables are cool season cropsarrow_forwardIn New York, farmers typically have a 3 year crop rotation of corn – soybeans – green manure. A) explain one reason crop rotation is important in farming B) explain what green manure is and why a grower would use it as part of their rotation schedulearrow_forwardThe practice of crop rotation uses nitrogen fixation to create fertile fields. First, a plant without a nitrogen-fixing relationship, such as corn, is planted. After the harvest, a nitrogen-fixing plant replaces the initial crop. Instead of harvesting the nitrogen-fixing plant, however, it is plowed under. The cycle continues in this manner. Why would nitrogen-fixing plants be plowed under instead of harvested? a) To increases usable nitrogen in the soil. b) To increase water retention. c) Nitrogen-fixing plants are not a food crop. d) To decrease bacteria in the soil.arrow_forward
- Which of these occurs through symbiotic nitrogen fixation? a. The plant benefits from using an endless source of nitrogen. b. The soil benefits from being naturally fertilized. c. Bacteria benefit from using photosynthates from the plant. d. All of the above occur.arrow_forwardWhich of the following is a biotic factor? a. wind b. disease-causing microbe c. temperature d. soil particle sizearrow_forwardWhich of the following factors would explain why there is a decreasing trend of microbial population from top to bottom? A. There is a shift in the condition form oxic to anoxic. B. All statements are acceptable. C. The soil particles become larger and not weathered. D. There is a decrease in the available nutrients.arrow_forward
- Nitrogen fixing bacteria is useful in growing which crop ________ A) Wheat B) Paddy C) Legume D) Maizarrow_forward(a) Higher compost recovery rate means that most of the raw materials used were converted into compost; (b) To adjust the amount of materials needed for a particular recovery rate, just divide the total weight or amount of materials and the recovery rate A. If statement A is true B. if statement B is true C. both statement A and B are true D. statement A nor B are truearrow_forwardWhich of these describes a possible solution to protect South Carolina residents from the effects of harmful algal blooms? A) plans and supplies to prepare for emergency evacuations B) warnings to switch to store bottled water instead of tap water C) laws prohibiting the building of new development close to shores D) advisories concerning which fish and other seafood to avoid eatingarrow_forward
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